What is a barn conversion?
A barn conversion turns an agricultural or rural building into a home while keeping its character: the brick or stone walls, roof timbers and large openings. It involves structural repair, insulation, new services and often a new floor slab.
How much does a barn conversion cost in Newtown?
In Newtown, a barn conversion typically costs £1,650–£2,750 per m² of floor area, including VAT at usually 5% (reduced rate for creating a new dwelling). For a typical 150 m² project that is roughly £247,500–£412,500. Building costs in Wales run about 8% below the UK average, and the figures for Newtown are adjusted to reflect that. Design, structural calculations and council fees are extra.
| Size or type | Guide range |
|---|---|
| Smaller project (105 m²) | £173,000–£289,000 |
| Typical project (150 m²) | £247,500–£412,500 |
| Larger project (210 m²) | £346,500–£577,500 |
| Rate per m² | £1,650–£2,750 |
What moves the price most:
- Services and drainage
- Glazing and finishes
- Insulation approach
- Planning conditions and ecology
Use the guide price tool to see how size and specification change the figure, then ask for a written, itemised quote.
Do you need planning permission for a barn conversion in Newtown?
Before anything is built in Newtown, we confirm which approvals apply in Wales. In Wales converting a barn into a home needs full planning permission; there is no equivalent of the English Class Q route.
Building regulations in Wales are set by the Welsh Government. Approval comes from the council’s building control service or a registered building control approver, with inspections during the work and a completion certificate at the end.
We check this for your address before design work starts, so there are no surprises later.
What we handle
The work we manage on a barn conversion:
- Ecology and bat survey coordination
- Insulation that respects the existing fabric
- New roof covering where needed
- Structural repairs and new floor slab
- Building control completion
- Planning or prior approval application
How long does it take?
Allow 6 to 12 months on site depending on condition. Allow time beforehand for drawings and approvals, usually 4 to 9 months.
Building in Newtown
Terraced houses in Welsh towns often have narrow plots, which suits rear and side return extensions and rear dormers.
Projects in Newtown (SY16) are surveyed in person before we quote, so the price reflects your actual property.
How it works
- 01
Free visit
We look at the property, talk through what you want and measure up. There is no charge and no obligation.
- 02
Drawings and written quote
We prepare the design and give you a written, itemised quote with inclusions and exclusions.
- 03
Approvals
Planning or permitted development confirmation, building regulations and any party wall matters.
- 04
Build and handover
Work follows the agreed programme, with inspections along the way and a completion certificate at the end.
Questions about barn conversions in Newtown
Do I need planning permission for a barn conversion in Newtown?
In Wales converting a barn into a home needs full planning permission; there is no equivalent of the English Class Q route.
How much does a barn conversion cost in Newtown?
In Newtown, a barn conversion typically costs £1,650–£2,750 per m² of floor area, including VAT at usually 5% (reduced rate for creating a new dwelling). A typical 150 m² project comes to roughly £247,500–£412,500. Your fixed price depends on the survey and drawings.
How long does a barn conversion take?
Typically 6 to 12 months on site, depending on the building’s condition.
Do you build barn conversions in Newtown?
Yes. We build barn conversions across Newtown, including postcodes SY16. Every project starts with a free home visit.
Do I need a bat survey?
Very often. Barns are common bat roosts, and planning authorities usually ask for an ecology survey.
Is VAT reduced on a barn conversion?
Usually yes. Converting a non-residential building into a dwelling normally qualifies for the reduced 5% VAT rate on building work. Our guide prices assume this rate.